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Anatomy > Cranial cavity and contents > Flashcards

Cranial cavity and contents Flashcards

1
Q

sinuses are formed between the layers of which meningeal layer?

A

between the meningeal layer

2 layers - sinus - 2 layers

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2
Q

name the unpaired dural venous sinuses

A 
superior sagittal sinus
inferior sagittal sinus
straight sinus
intercavernous sinus
basilar sinus
occipital sinus
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3
Q

name the paired dural venous sinuses

A 
transverse sinus
sigmoid sinus
caverous sinus
superior petrosal sinus
superior petrosal sinus
inferior petrosal sinus
sphenoparietal sinus
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4
Q

which venous components drain into the cavernous sinus

A

superior opthalmic vein
cerebral vein
sphenoparietal vein

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5
Q

the cavernous sinus drains to what venous stuctures

A

superior and inferior petrosal sinuses

then to the pterygoid plexus

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6
Q

where does the cavernous sinus lie

A

on either side of the body of the sphenoid bone (sella turcica)
on either side of the pituitary gland

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7
Q

what components are contained within the cavernous sinus

A

internal carotid artery

abducens (CN6)

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8
Q

what components are contained within the lateral dural wall of the cavernous sinus

A

oculomotor nerve (CN3)
trochlear nerve (CN4)
opthalmic division of trigeminal nerve (V1)
maxillary division of trigemnial (V2)

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9
Q

CN1

A

olfactory

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10
Q

CN2

A

optic

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11
Q

CN3

A

occulomotor

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12
Q

CN4

A

trochlear

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13
Q

CN5

A

trigeminal

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14
Q

CN6

A

abducens

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15
Q

CN7

A

facial

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16
Q

CN8

A

vestibulocochlear

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17
Q

CN9

A

glossopharyngeal

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18
Q

CN10

A

vagus

19
Q

CN11

A

accessory

20
Q

CN12

A

hypoglossal

21
Q

olfactory nerve ->

A

cribiform plate

22
Q

optic nerve –>

A

optic canal

with opthalmic artery

23
Q

oculomotor nerve –>

A

superior orbital fissure

24
Q

name the structures that pass through the superior orbital fissure

A 
oculomotor nerve
trochlear nerve
lacrimal, frontal, and nasociliary branches of opthalmic nerve
abducens nerve
superior opthalmic vein
25
Q

trochlear nerve –>

A

superior orbital fissure

26
Q

opthalmic nerve (v1) –>

A

superior orbital fissure

27
Q

maxillary (v2) –>

A

foramen rotundum

28
Q

mandibular (V3) –>

A

foramen ovale

29
Q

abducens –>

A

superior orbital fissure

30
Q

facial nerve –>

A

internal acoustic meatus

31
Q

vestibulocochlear (CN8) –>

A

internal acoustic meatus

32
Q

glossopharyngeal (CN9) –>

A

jugular foramen

33
Q

vagus (CN10) –>

A

jugular foramen

34
Q

accessory (CN11) –>

A

jugular foramen

35
Q

hypoglossal (CN12) –>

A

hypoglossal canal

36
Q

what components pass through the jugular foramen

A 
inferior petrosal sinus
glossopharyngeal
vagus
accessory nerve
sigmoid sinus
posterior meningeal artery
37
Q

the middle meningeal artery passes through what structure in the skull

A

foramen spinosum

with the meningeal branch of the mandibular nerve

38
Q

what forms the basiliar artery

A

the joining of the right and left vertebral arteries

39
Q

what branches do the vertebral arteries give off before joining to form the basilar artery?

A

posterior inferior cerebellar artery (PICAs)
posterior spinal arteries
anterior spinal arteries

40
Q

what branches off the basilar artery?

A

pontine branches
labyrinthine arteries
anterior inferior cerebellar arteries (AICAs)
superior cerebellar artery
posterior cerebral artery (terminal branches)

41
Q

describe the progression of the internal carotid artery as it enters the cranial cavity

A 
enters through the carotid canal
passes through the cavernous sinus
gives off the opthalmic artery 
branches into posterior communicating artery
branches into anterior cerebral artery
continues as the middle cerebral artery
42
Q

the anterior communicating artery allows for communication between what vessels

A

anterior cerebral arteries from the internal carotid

43
Q

the posterior communicating arteries allow for communication between what arteries

A

posterior cerebral and internal carotid

44
Q

what arteries make up the circle of willis

A 
posterior cerebral arteries
posterior communicating
internal carotid
anterior cerebral 
anterior communicating

Anatomy (19 decks)

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